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| Moghaddam, Ali; Vollmann, Johann; Wanek, Wolfgang; Ardakani, M. Reza; Raza, Amir; Pietsch, Gabriele; Friedel, Juergen K.. |
| In eastern Austria, alfalfa is usually grown as a rainfed crop in crop rotations in organic farming systems, where year-to-year rainfall fluctuations cause different levels of drought stress. To identify the suitability of different alfalfa genotypes and drought tolerance indices, 18 contrasting alfalfa genotypes were evaluated under irrigated and rainfed conditions at the research station of the University of Natural Resources and Life Sciences (BOKU), Vienna, Austria, during 2006-08. The first study year (2006) was considered as the establishment year. Five drought tolerance selection indices were estimated based on shoot dry matter, total biomass yield and biological nitrogen fixation (BNF) data. The correlation between irrigated and rainfed... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Crop husbandry. |
| Ano: 2012 |
URL: http://orgprints.org/22510/7/22510.pdf |
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| Ardakani, M.Reza; Pietsch, Gabriele; Wanek, Wolfgang; Schweiger, Peter; Moghaddam, Ali; Friedel, Juergen K.. |
| This study evaluated the effects of co-inoculation with Sinorhizobium meliloti and arbuscular mycorrhizal fungi on the growth, yield and biological nitrogen fixation (BNF) of lucerne (Medicago sativa L.) under organic farming and dry weather conditions. The trial was laid out as a factorial experiment in the fields of the University of Natural Resources and Applied Life Sciences, Vienna-Austria at Raasdorf in 2007. The experimental factors of S. meliloti and arbuscular mycorrhiza (AM) including Glomus etunicatum, G. intraradices and G. claroideum and irrigation levels were tested. Co-inoculation of lucerne with S. meliloti and AM increased shoot dry weight as well as BNF at the first and second harvest but for BNF it was not significant. Irrigation... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Crop husbandry. |
| Ano: 2009 |
URL: http://orgprints.org/22505/6/22505.pdf |
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| Celette, Florian; Peigne, Joséphine; Thomsen, Ingrid Kaag; Carcea, Marina; Aveline, Anne; Hellou, Guénaëlle; Mäder, Paul; Hiltbrunner, Jürg; Mayer, Jochen; Dubois, David; Thommen, Andreas; Schweinzer, Agnes; Friedel, Juergen K.; David, Christophe. |
| A common handbook was conceived in the CORE Organic AGTEC-Org project in order to give some elements of field trial monitoring. |
| Tipo: Working paper |
Palavras-chave: Crop combinations and interactions Composting and manuring Soil tillage Soil Crop health; Quality; Protection Weed management. |
| Ano: 2008 |
URL: http://orgprints.org/16461/1/AGTEC_Agronomy_Handbook_of_Methods.pdf |
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| Freyer, Bernhard; Surboeck, Andreas; Friedel, Juergen K.; Heinzinger, Markus; Gollner, Manfred. |
| A long term field monitoring concerning the development of Organic Farming is performed at the bio-farm “Rutzendorf “ of the BVW GmbH in the Marchfeld region east of Vienna. It is an interdisciplinary project of eleven research institutes, which started in 2003. The aims of the project are: examination of changes concerning soil and plant parameters accompanying the conversion to organic farming; investigation of the effects of different organic fertilisation systems (green manure, communal green forage compost, farmyard manure) on soil properties and on crop performances; analysis of existing biotopes (hedges and field stripes) on the farm, and planning and selective realization of new biotopes with the aim of enhancing the biodiversity of the area,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4348/5/Freyer_etal_monitoring_4p_revised%2Ded.doc |
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| Ardakani, M. Reza; Pietsch, Gabriele; Moghaddam, Ali; Raza, Amir; Friedel, Juergen K.. |
| It is generally considered that root turnover is a major contributor to organic matter and mineral nutrient cycles in organic managed agroecosystems. Approach: This study designed to investigate whether microbial activity could affect on root properties of lucerne in an organically managed field under dry weather conditions. The trial was laid out as a factorial experiment in the fields of the University of Natural Resources and Applied Life Sciences, Vienna-Austria at Raasdorf in 2007. The experimental factors of Sinorhizobium meliloti and arbuscular mycorrhiza (AM) including Glomus etunicatum, G. intraradices and G. claroideum and irrigation levels were tested. Results: Results showed that increasing water deficit affected root dry weigh, specific root... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Soil. |
| Ano: 2009 |
URL: http://orgprints.org/22506/7/22506.pdf |
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| Moghaddam, Ali; Pietsch, Gabriele; Ardakani, M.Reza; Raza, Amir; Vollmann, Johann; Friedel, Juergen K.. |
| Alfalfa is the best known fodder crop with high ability of biological nitrogen fixation and drought tolerance in dry, Pannonian region of east Austria. Different morphological and physiological characteristics of 18 alfalfa genotypes from different geographical origins, 8 Iranian ecotypes and 10 European cultivars were evaluated under irrigated and rainfed conditions during 2006-08 cropping seasons. The objectives of this study were to measure genetic distance and divergence among genotypes and to classify them based on morphological and physiological characters. Cluster analysis differentiated Iranian ecotypes and European cultivars from each other under irrigated condition, and when data averaged across two environments (irrigated and rainfed). However,... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general; Crop husbandry. |
| Ano: 2011 |
URL: http://orgprints.org/22508/7/22508.pdf |
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| Pietsch, Gabriele; Friedel, Juergen K.; Freyer, Bernhard. |
| Biological nitrogen fixation is the main source of nitrogen in organic farming systems. There is little known about the impacts of cultivation techniques in pannonic regions on the capacity of biological nitrogen fixation (BNF) and the water use efficiency (ETC: evapotranspiration coefficient) of lucerne. From 1999 to 2001, pure lucerne crops and lucerne-grass mixtures were investigated with respect to the effect of the utilization system (harvested = forage production; mulched = green manure; pure lucerne crops versus lucerne-grass mixtures) on yield, BNF, soil N balance and water use efficiency. The amount of total fixed N was 124-150 kg N ha-1 in 2000 and 178-197 kg N ha-1 in 2001. The proportion of N derived from the atmosphere (% Ndfa) ranged from 26... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2005 |
URL: http://orgprints.org/4344/3/Pietsch_etal_4p_revised%2Ded.doc |
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| Kasper, Martina; Freyer, Bernhard; Amon, Barbara; Hülsbergen, Kurt-Jürgen; Schmid, Harald; Friedel, Juergen K.. |
| Landwirtschaftliche Nutzungssysteme sind in unterschiedlicher Weise an der Emission und Speicherung von klimarelevanten Gasen (CO2, CH4 und N2O) beteiligt. Die wesentlichen Projektziel sind die Bereitstellung von Daten- und Berechnungsgrundlagen für eine umfassende Darstellung von Profilen treibhausgasrelevanter Emissionen und Senken landwirtschaftlicher Betriebe in den acht Hauptproduktionsgebieten Österreichs. In jeder Region werden die beiden vorherrschenden Betriebstypen mit dem Programm REPRO modelliert, da es die Analyse der C-, N- und Energieflüsse im System Boden-Pflanze-Tier-Umwelt kombiniert. Als Beispiel werden die Ergebnisse des Hauptproduktionsgebietes "Nordöstliches Flach- und Hügelland" im Anschluss präsentiert. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Quality and evaluation of inputs. |
| Ano: 2011 |
URL: http://orgprints.org/17776/3/Kasper_17776.pdf |
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